This is a note to let you know that I've just added the patch titled
bnxt_en: Fix possible memory leak when hwrm_req_replace fails
to the 5.15-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary
The filename of the patch is:
bnxt_en-fix-possible-memory-leak-when-hwrm_req_repla.patch
and it can be found in the queue-5.15 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
commit 90a062bd9f8712aeb7abdabd554099c2b735397d
Author: Kalesh AP <kalesh-anakkur.purayil@xxxxxxxxxxxx>
Date: Fri Jan 3 20:38:47 2025 -0800
bnxt_en: Fix possible memory leak when hwrm_req_replace fails
[ Upstream commit c8dafb0e4398dacc362832098a04b97da3b0395b ]
When hwrm_req_replace() fails, the driver is not invoking bnxt_req_drop()
which could cause a memory leak.
Fixes: bbf33d1d9805 ("bnxt_en: update all firmware calls to use the new APIs")
Reviewed-by: Pavan Chebbi <pavan.chebbi@xxxxxxxxxxxx>
Signed-off-by: Kalesh AP <kalesh-anakkur.purayil@xxxxxxxxxxxx>
Signed-off-by: Michael Chan <michael.chan@xxxxxxxxxxxx>
Link: https://patch.msgid.link/20250104043849.3482067-2-michael.chan@xxxxxxxxxxxx
Signed-off-by: Jakub Kicinski <kuba@xxxxxxxxxx>
Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>
diff --git a/drivers/net/ethernet/broadcom/bnxt/bnxt_ulp.c b/drivers/net/ethernet/broadcom/bnxt/bnxt_ulp.c
index fde0c3e8ac57..871f695e7076 100644
--- a/drivers/net/ethernet/broadcom/bnxt/bnxt_ulp.c
+++ b/drivers/net/ethernet/broadcom/bnxt/bnxt_ulp.c
@@ -252,7 +252,7 @@ static int bnxt_send_msg(struct bnxt_en_dev *edev, int ulp_id,
rc = hwrm_req_replace(bp, req, fw_msg->msg, fw_msg->msg_len);
if (rc)
- return rc;
+ goto drop_req;
hwrm_req_timeout(bp, req, fw_msg->timeout);
resp = hwrm_req_hold(bp, req);
@@ -264,6 +264,7 @@ static int bnxt_send_msg(struct bnxt_en_dev *edev, int ulp_id,
memcpy(fw_msg->resp, resp, resp_len);
}
+drop_req:
hwrm_req_drop(bp, req);
return rc;
}
